# RTRIM

## Syntax

```sql
RTRIM(str)
```

## Description

Returns the string `str` with trailing space characters removed.

Returns NULL if given a NULL argument. If the result is empty, returns either an empty string, or, with [SQL\_MODE=Oracle](https://app.gitbook.com/s/aEnK0ZXmUbJzqQrTjFyb/community-server/about/compatibility-and-differences/sql_modeoracle), `NULL`.

The Oracle mode version of the function can be accessed outside of Oracle mode by using `RTRIM_ORACLE` as the function name.

## Examples

```sql
SELECT QUOTE(RTRIM('MariaDB    '));
+-----------------------------+
| QUOTE(RTRIM('MariaDB    ')) |
+-----------------------------+
| 'MariaDB'                   |
+-----------------------------+
```

Oracle mode:

```sql
SELECT RTRIM(''),RTRIM_ORACLE('');
+-----------+------------------+
| RTRIM('') | RTRIM_ORACLE('') |
+-----------+------------------+
|           | NULL             |
+-----------+------------------+
```

## See Also

* [LTRIM](https://mariadb.com/docs/server/reference/sql-functions/string-functions/ltrim) - leading spaces removed
* [TRIM](https://mariadb.com/docs/server/reference/sql-functions/string-functions/trim) - removes all given prefixes or suffixes

<sub>*This page is licensed: GPLv2, originally from*</sub> [<sub>*fill\_help\_tables.sql*</sub>](https://github.com/MariaDB/server/blob/main/scripts/fill_help_tables.sql)

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